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Technical SEO FAQ · JavaScript SEO & Rendering

How do JavaScript redirects affect SEO?

For permanent URL changes, HTTP redirects are generally preferable because the redirect is communicated directly at the protocol level.

For example:

HTTP/1.1 301 Moved Permanently
Location: https://example.com/new-page

JavaScript navigation adds another processing dependency.

During migrations, validate:

  • old URL;
  • HTTP status;
  • final destination;
  • redirect chain;
  • canonical;
  • internal links;
  • sitemap references.

Google's site-move documentation provides specific guidance for redirects and URL migrations.

Sources

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